| COUNTERBORE DIAMETER | 0.182 INCHES NOMINAL NUT |
| COUNTERSINK ANGLE | 130.0 DEGREES MINIMUM AND 140.0 DEGREES MAXIMUM NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| NUT COUNTERBORE DEPTH | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM NUT |
| NUT DIAMETER | 0.312 INCHES NOMINAL |
| NUT HEIGHT | 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| PILOT LENGTH | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| PILOT DIAMETER | 0.225 INCHES MINIMUM AND 0.229 INCHES MAXIMUM |
| SPECIAL FEATURES | PILOT KNURLED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNC |